The reason of the blaze that shut operations on April 12, 2009 was not known.
Repairs have been completed. Production resumed a few days ago and is ramping up, Shell Spokeswoman Caroline Wittgen said.
She refused to say how much output has resumed.
Traders informed prior to the disruption the pipeline carried around 120,000 barrels per day of Bonny Light crude, although they were unsure how much of this was closed.
Bonny Light is a Nigerian crude that is popular with US and European refiners.
Wittgen said force majeure, which frees Shell from its contractual obligations, remained in place for Bonny Light shipments.
The Trans-Niger pipeline crosses Ogoniland, a region where Shell closed its output operations in 1993 due largely to popular protests over pollution and lack of development.
President Umaru Yar’Adua announced in 2008 that the government would give the oilfields to another company after Shell abandoned them.
